EP 0768294 B1 20010912 - Process for preparing 2,4,4,7-tetramethyl-oct-6-en-3-on and its use as perfume
Title (en)
Process for preparing 2,4,4,7-tetramethyl-oct-6-en-3-on and its use as perfume
Title (de)
Verfahren zur Herstellung von 2,4,4,7-Tetramethyl-oct-6-en-3-on und dessen Verwendung als Riechstoff
Title (fr)
Procédé pour la préparation de 2,4,4,7-tetraméthyle-oct-6-ène-3-one et son utilisation comme parfum
Publication
Application
Priority
DE 19539625 A 19951016
Abstract (en)
[origin: EP0768294A1] Prepn. of 2,4,4,7-tetramethyl-oct-6-en-3-one (I) comprises treating diisopropylketone with 1-chloro-3-methyl-2-butene (prenyl chloride). The novelty is that the reaction is conducted in a 2-phase system contg. an aq. phase in the presence of a phase transfer catalyst.
IPC 1-7
IPC 8 full level
A61K 8/35 (2006.01); A61Q 13/00 (2006.01); C07C 45/61 (2006.01); C07C 45/67 (2006.01); C07C 45/68 (2006.01); C07C 49/203 (2006.01); C11B 9/00 (2006.01)
CPC (source: EP US)
C07C 45/68 (2013.01 - EP US); C07C 49/203 (2013.01 - EP US); C11B 9/0015 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE FR GB IT LI NL
DOCDB simple family (publication)
EP 0768294 A1 19970416; EP 0768294 B1 20010912; DE 19539625 A1 19970417; DE 59607664 D1 20011018; JP H09124540 A 19970513; US 6252120 B1 20010626
DOCDB simple family (application)
EP 96115890 A 19961004; DE 19539625 A 19951016; DE 59607664 T 19961004; JP 28904796 A 19961014; US 72800996 A 19961009